int main(int argc, char** argv)

 {  

     sp<ProcessState> proc(ProcessState::self());

     // create a client to surfaceflinger

     sp<SurfaceComposerClient> client = new SurfaceComposerClient();  //创建SurfaceFlinger的本地代理

     char str[];

     DisplayInfo display;

     //获取屏幕的宽高等信息

     client->getDisplayInfo(client->getBuiltInDisplay(HWC_DISPLAY_PRIMARY), &display); 

     //创建SurfaceControl的本地代理

     sp<SurfaceControl> surfaceControl = client->createSurface(String8("testsurface"),

         /**/, /**/, PIXEL_FORMAT_RGBA_8888, );  

     /*********************************************************************/

     SurfaceComposerClient::openGlobalTransaction();

     surfaceControl->setLayer(); //设置z轴

     surfaceControl->setSize(display.w, display.h);

     surfaceControl->setPosition(, );  //起始位置

     SurfaceComposerClient::closeGlobalTransaction();

     // 获取Surface本地代理

     sp<Surface> surface = surfaceControl->getSurface();//获取surface

     Surface::SurfaceInfo info;  

     //创建SurfaceControl的本地代理

     sp<SurfaceControl> surfaceControl1 = client->createSurface(String8("wenfu"),

         display.w, display.h, PIXEL_FORMAT_RGBA_8888, );

     SurfaceComposerClient::openGlobalTransaction();

     surfaceControl1->setLayer(); //设置z轴

     surfaceControl1->setSize(display.w, display.h);

     surfaceControl1->setPosition(, );  //起始位置

     SurfaceComposerClient::closeGlobalTransaction();

     // 获取Surface本地代理

     sp<Surface> surface1 = surfaceControl1->getSurface();//获取surface

     Surface::SurfaceInfo info1;  

     ssize_t bpr ;

     SkBitmap bitmap;

     SkCanvas canvas ;

     SkCanvas canvas1;

     SkBitmap bitmap1;

     SkPath path;

     SkPaint paint;  //paint可以指定绘图的颜色，文本的大小及对齐方式，编码格式

     int sx,sy;

     int w,h;

     int flg = ;

     int flg2 = ;

     int lastx = , lasty = , ctrx = , ctry = ;

     char st[];

 /////////////////////////////////////////////////////////////////////////////////////////

     void const* mapbase = MAP_FAILED;

     ssize_t mapsize = -;

     void const* base = ;

     size_t size = ;

     int ww,hh;

     ScreenshotClient screenshot; //下面是截屏操作

     sp<IBinder> display1 = SurfaceComposerClient::getBuiltInDisplay(ISurfaceComposer::eDisplayIdMain);

     if (display1 != NULL && screenshot.update(display1) == NO_ERROR)

     {

         base = screenshot.getPixels();

         ww = screenshot.getWidth();

         hh = screenshot.getHeight();

         size = screenshot.getSize();

     }

     if (base)  //以下是显示部分

     {

         SkBitmap bitm;

         bitm.setConfig(SkBitmap::kARGB_8888_Config, ww, hh);

         bitm.setPixels((void*)base);

         surface1->lock(&info1);

             bpr = info1.s * bytesPerPixel(info1.format);

             bitmap1.setConfig(SkBitmap::kARGB_8888_Config, display.w, display.h, bpr);

             bitmap1.setPixels(info1.bits);

             canvas1.setDevice(new SkDevice(bitmap1));

             canvas1.drawBitmap(bitm, SkIntToScalar(), SkIntToScalar());  //从0，0点开始画图

         surface1->unlockAndPost();

     }

     if (mapbase != MAP_FAILED) {

         munmap((void *)mapbase, mapsize);

     }

     ////////////////////////////////////////////////////////////////////////////////////////

     while()；

     return ;

 }